Theorem an42 825

Description: Rearrangement of 4 conjuncts. (Contributed by NM, 7-Feb-1996.)

Assertion

Ref	Expression
an42

Proof of Theorem an42

Step	Hyp	Ref	Expression
1		an4 824	. 2
2		ancom 450	. . 3
3	2	anbi2i 694	. 2
4	1, 3	bitri 249	1

Syntax hints:  <->wb 184  /\wa 369

This theorem is referenced by:  rnlemOLD  965  brecop2  7424  supmo  7932  aceq1  8519  eulerpartlemt0  28308  an43  30589  dfiso2  32568  bj-if1bi  37720

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 185  df-an 371